A- Each of the two gas generating units of a certain power system can't run below 90 MW or above
520 MW. The fuel rate equations in (m³/h) for the first and the second generating units are as
follows: F1 = 0.082 P1$^2$ + 179 P1 + 9190 and F2 = 0.064 P2$^2$ + 157 P2 + 7690. (P1 and P2 are in
MW)
The price of the gas used to run the first generating unit is 0.06XX $/m³ where XX are the last
two digits (from right) of your registration number.
1- Find the price of the gas of the second generating unit at which the economic dispatch
happens at equal sharing for the case of total power at 800 MW. Discuss your result.
2- At this gas price of the second generating unit, find the economic sharing of each of the two
generating units for the total power of 700 MW. Discuss your result.
3- Find the saving occurs for the case of point 2 when compared with the case of distributing the
total power such that P1 = 200 MW and P2 = 500 MW. Comment on your result.